Integral header panel with outward convex curvature



FIG. 1 is an isometric view of an integral header panel with outward convex curvature in accordance with my design.

FIG. 2 is a front view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a top view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a left side view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines depict portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an integral header panel with outward convex curvature, as shown and described. 